Need help to find out the best wood panel to use

What type of plywood or wood should I use for a DIY corner craft table top? I'm going to use 2 file cabinets as the base at each end and my hubby is going to put a piece of wood in the corner to help hold it up. I need a sturdy good type of wood. I do scrapbooking, make home decor, vinyl and pretty much anything else I can do with my Cricut Explore Air 2. Hopefully you can help me decide cause we don't know!!!

A good option would be a "flush" solid core door "slab". They're basically the door itself without the jamb or any holes drilled in it for the lock with a flat surface. They're available in sizes starting at 24" wide (or deep as you're going to use it) up to 36" and about 80" long but could be cut if you needed a shorter length. They're not very expensive and sometimes you can find one that's damaged and save a few dollars. Give it a light sanding, a stain color of your choice, and a couple or three coats of polyurethane and you've got a nice looking, rock solid work surface.

Another option is to use length of prefabricated kitchen countertop. It's a bit more expensive (look for something damaged) but you have an attractive, durable work surface. They'll have a backslash but that can be cut off or kept intact (keeps stuff from rolling of the back). The only caveat is that depending on the span between your filing cabinets you might have to add some support at the back along the wall.